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i 1 .1, _ _ _ .1. - ^M•. _ I f I +'1.. -'3. ..1� 5 ti..'.,, i ._! rl ,i.Y: J ;• 10 Decerimber-2001 AGE=NCProject No. 45-0114 Page 2 of,4: ' The pilot test,consisted of extracting ground water from well.EW-1'.at,a rate of,5 GPM utilizing a 4-inch diameter'submersible' Grundfos Redi'-flo pump.. The pumping rate was determined .by ;it rneasuririg the time required to'fill a;5-gallon bucket from the pump`dischargo hose's The-test.utillzed 7/9-inch..diameter, model 3001'Solinst Levelogger pressure transducers that were -deployed in wells MW-8, MW-9 and EW-1.=Each pressure transducer was:preprogrammed,to log.. water levels.at one-minui to intervals. Copies of pressure transducer water level data logged are in :• ;Apperidii A: , The depth to ground water was measured with a Solinst'water meter in all the observation wells.'The = measuremerit depths were recorded during the test (Appendix B) and are summarized on Table I.' . A summary of the monitoring well constructions are depicted in Appendix•B.' After 720 minutes of constant rate pumping (5 GPM), the maximum ground water drawn-down m extraction well EW-I was observed to be 18 feet. Maximum draw,down in well MW-8'(located 30 ' feet toward the west} was 0.16 feet. Draw-down-in well'MW=9 (located approximately 15 feet toward the east).was Q.37 feet; drawdown in well MW-2 (located 30 feet towards the east),was 0.23 feet, draw-down in well-MW-3 (located'40 feet towards the north) was 0.1 'feet-and draw-down in well MW-1 (located 40 feet towards the west)was 0.21 feet.No significant drawdown was measured wells MW-4 and MW-5. 1 The_.maximum ground water draw-down,in observation wells versus the distance of each well from ' the extraction point was graphed on semi-logarithmic paper; utilizing the Distance-Drawdown Method, a general value'of the transmissivity, storativity and.hydraulic conductivity of the aquifer " were determined(Appendix Q.Semi-logarithmic plots of draw-down versus time for MW-8,MW-9 and EW-1 are in'Appendix D. d plotted, a transmissivit value of4 353 gallon/da /feet a stozatiyit ' Utilizing the data collected an p ott ty b y y value. 'of 0.18 and a hydraulic.conductivity value,of 0:061 cm/s was calculated. Utilizing a semi-logarithmic.plotof draw-down versus distance, a theoretical radius of influence or .• projected drawdown intercept was observed at 60 feet (Appendix•E). Results'o f the aquifer,ground ' .- water extraction test are'summarized in Table 2.: , ,t i Advanced GeoEnvironmentallnc,